Oops, realised after posting this (in a rush, on a small mobile keypad) that it's Bua Siam, not Bus Siam. Anyhow... Link to Gumtree ad: gumtree.com/p/thai-massage-services/bua-siam-thai-massage-therapy/1432832609
If anyone is in the know, grateful for advice on what is, or isn't, on offer there. Looks legit from outside, but they always do. Tempted to give it a go. If I do, I'll post report.